We've shared a few ways to increase your chances of getting to the airport on time, but if you really want to make sure you plan your itinerary correctly, TravelMath's trip calculator will help you budget your time for stress-free travel.

TravelMath's calculator will calculate travel time, distance, and cost between any two locations in an instant. You can also view information on flights, hotels in the area, and time differences. Likely their most useful feature is the ability to find the closest airport to you—especially useful for rural areas or big cities with multiple airports. Basically, any time budgeting you'll need to do for flying, driving, and the other necessities of travel, you can do it with TravelMath. Hit the link to test it out.